Wide beam floodlight



Oct. 6, 1959 o. L. CALMES WIDE BEAM FLOODLIGHT 2 Sheets-Shet 1 nu [If] nm Filed June 27, 1956 mm pnnnnnnnnnnnnnnnnnnnnnnnnnnunn INVENTOR.

Dallas L. Calmes ATTD RN EYE 2,907,870 WIDE BEAM FLOODLIGHT Dallas L.Calmes, Bellaire, Tex., assignor of fifteen per- ,1 cent to WilsonElectrical Equipment Co., Inc., a corporation of Texas, twenty percentto W. F. Wilson, twenty percent to Buell' Moore, five percent to GlennM. Mathews and five percent to J. G. Mullins Application June 27, 1956,Serial No. 594,217 I 2Claims. (or. 240-3 This invention relates toilluminating means. and more particularly to a wide beam floodlight.

The object of the invention is to provide a wide beam floodlight whichis constructed so that heat will be ef- -ficiently dissipated andwhereby there will be protection from explosions or the like.

Another object of the invention is to provide an illuminating mechanismwhich includes in one unit a lamp or bulb as well as theballast so thatthe entire unit is compact, the device of the present inventionincluding a novel reflector which insures that all of the light rayswill be efiiciently reflected towards the desired direction,

there being an improved means for dissipating heat from the hot lamp sothat there will be no damage or breakage to the various parts.

A further object of the invention is to provide a wide beam floodlightwhich includes a.housing and contains the lamp or bulb, and whereby thehousing can be pivoted or adjusted as desired so that the-beam of lightcan be directed inany desired direction.

A further object of the invention is to provide a wide beam floodlightwhich is extremely simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of thefollowing description.

In the accompanying drawings, forming a part of this application and inwhich like numerals are used to desigirate like parts throughout thesame.

Figure 1 is a front elevational view of the wide beam floodlight,constructed according to the present invention.

Figure2 is a side elevational view of the assembly of the presentinvention.

Figure 3 is a top plan view of the'floodh'ght, with parts broken awayand in section. V

Figure 4 is a sectional view taken on the line 44 of Figure 3.

Figure'S is a sectional Figure 1.

Figure 6 is a fragmentary elevational view illustrating the connectionbetween the socket enclosure and the housing.

view taken on the line 5-5 of Figure 7 is a fragmentary sectionalviewillustrating certain constructional details of the apparatus.

Figure 8 is a view illustrating the bottom portion of the housing.

Referring in detail to the drawings, the numeral 10 designates a hollowpost or member which may have wires 11 extending therefrom, and thewires 11 may be connected to a suitable source of electrical energy.Mounted on the upper end of the member 10 is a hollow casing 12 whichincludes a horizontally disposed bottom wall 13. The casing 13 isadapted to hold ballast 14 therein. Arranged on the upper end of thecasing 12 is a closure member 15 which has a plurality of spaced apartdissipating fins 16 thereon. The closure member 15 is retained in placeon the casing 12 by means of securing elements such as bolts 17 whichextends between the bottom wall 13 and the closure member 15,

Patented Oct. 6, 1959 23 which are connected to a hollow housing 24 bymeans of bolts or pins 25. Thus, by loosening the bolts 25, the housing24 can be adjusted whereby the direction in which the light rays aredischarged can be regulated orcontrolled as desired.

The housing 24 includes a horizontally disposed bottom wall 26 and acurved side wall or back wall 27. Arranged below the bottom of thehousing 24 is a hollow enclosure '28, and the enclosure 28 is providedwith a horizontal flange 29 on its upper surface which may be secured tothe bottom of the housing 24 in any suitable manner, as for example bymeans of bolt and nut assemblies 30, Figure 4. A socket 31 is arrangedin the enclosure 28, and a lamp or bulb 32 is positioned in the housing24. The lower portion of the lamp 32 extends down through an opening 33in the bottom wall 26 of the housing, and the lower end of the lamp 32threadedly engages the socket 31. A bushing 34 depends from the socket31, and conductor wires 35 lead from the bushing 34 to the ballast 14.

Mounted on the upper end of the housing 24 is a cover which is indicatedgenerally by the numeral 36, and the cover 36 is provided with aplurality of heat dissipating fins 37 on the upper end thereof.Depending from the cover 36 is a flange 38 which snugly engages theupper portion of the housing 24. Secured to the undersurface of thecover 36 is a body member 39, and the body member 39 may be secured tothe cover 36 by means of securing elements 45. Depending from the bodymember 39 is a plurality of concentrically arranged rings 40 which alsohelp to dissipate the heat generated by the lamp 32. The body member 3'9is provided with a groove 41 which snugly receives therein the upper endof a transparent cylinder 42', and the cylinder 42 surrounds the lamp 32so as to offer added protection with the device. There is furtherprovided in the cover 36 a groove 43 which receives therein the upperend of a reflector 44. As shown in Figure 3, the reflector 44-isprovided with an intermediate outwardly offset portion 46 which servesto insure that all of the light rays will From the foregoing it isapparent that there has been provided a wide beam floodlight. In use thewire 11 may lead to a suitable source of electrical energy and with thelamp or bulb 32 energized the light rays will "be directed outwardlythrough the opening 47 in'the front of the housing 24 and these lightrays will pass through the transparent plate or lens 48 so that thedesired areacan be efliciently and eifectively illuminated. The casing12 for the ballast 14 is mounted on the upper end of the member 10, andthe housing 24 is arranged contiguous to the casing 12 as shown in thedrawings. There is provided the heat dissipating fins 37 and 16 as wellas the heat dissipating rings 40 which serve to insure that heat fromthe lamp 32 will be properly dissipated so that there will be no damageto the various parts 3 which may result from excessive heat. The lamp 32is enclosed in the transparent cylinder 42 so that the cylin der 42 actsas a safety enclosure for the lamp 32 and his especially advantageous.when the-device is to be used. in neighborhoods which require specialprecautionsagainst explosive hazards. Furthermore, the reflector 44 isshaped so as to include the outwardly extending intermediate ofisetportion 46 and this construction of the reflector. 44- insures that allof the light rays will be properly reflected or directed outwardly withmaximum efficiency. By loosening the bolts 25, the housing 24- can bepivoted so that the light rays can be directed in the desired direction.

The present invention is constructed so that there is provided a compactunit whereby the ballast 14 is contiguous to the housing 24. Thereflector 44 includes the intermediate offset portion 46 which insuresthat there will be no blind spots in the reflector whereby the lightrays will be properly directed outwardly in the desired direction.

The lamp 32 is arranged in the transparent cylinder 42 so as to minimizedanger from explosion as when the device is being used in areas wheredanger of gases may be present. The upper end of. the cylinder 42 issnugly seated in the groove 41 in the body member 39 whereby thecylinder is maintained in its proper position. The reflector 44 isreceived in the groove 41 to be arranged in the cover 36 so that thereflector will be maintained in its proper position and the device canbe readilyassembled or disassembled as when parts are to be removed orreplaced. I

The parts can be made of any suitable material and in any desired shapeand size. Suitable gaskets and washers can be used wherever required ordesired. The various parts are preferably made of a material which isnot effected by heat. With the present invention, an extremely wide beamof light will be directed outwardly through the opening 47 in thedirection desired. The cylinder 4-2 creates a vapor tight enclosure sothat the device can be used in hazardous locations. The rings 40 serveto dissipate heat so that this heat will be conveyed to the outer fins37 on top of the housing. Gaskets may be arranged contiguous to the topand bottom of the cylinder 42. As shown in the drawings, the casing 12which holds the ballast 14, and the housing 24 are arranged adjacent toeach other on top of the member 19 so that a high lumen output isproduced. By having the V-shaped or offset portion 46, the entire outputof the lamp will be recovered.

. The present invention is constructed so that there will be an economyin weight and overall size and the various parts such as the reflectorcan be removed and replaced Without the necessity of replacing theentire unit. The heat dissipating fins insure higher elficiency andlonger lamp life, and the ballast enclosure 12 is an integral part ofthe floodlight itself. Since the heat will be dissipated, there will beless deterioration of the parts through crumbling and melting of theparts or various components. The socket 31 is arranged in the separateenclosure 28 so that there will be less chance of the porcelain crackingfrom the heat of the lamp. By having the ballast arranged as described,less installation is required since a separate weather proofinstallation for each component is not necessary. Thus, one fixture doesthe work of a lot of fixtures. As previously described, the presentinvention provides an extremely wide beam of useful light.

I claim:

11A wide beam floodlight comprising a member, a casing secured to saidmember, a ballast positioned within said casing, a housing positionedadjacent to said casing, a lamp positioned within said housing andelectrically connected to said ballast, a transparent cylinderpositioned within said housing and surrounding said lamp, a reflectorpositioned within said housing behind said lamp, said reflector having acurved shape and being provided: with an outwardly offset portionintermediate its ends, heat dissipating means embodying fins on top ofsaid casing and on top of said housing, concentric rings for conveyingheat away from the interior of said housing'to the fins on top of saidhousing, a socket enclosure posi-- tioned below said housing, and abracket secured to said casing and embodying angularly arranged armsconnected to the sides of said housing.

2. A wide beam floodlight comprising a member, a hollow casing mountedon said member and including a bottom wall, a ballast positioned withinsaid casing, a closure'membermounted on said casing, a plurality of heatdissipating fins positioned on the top of said closure a member,conductor wires extending through said memher and connected to saidballast, a housing positioned adjacent to the upper end of said memberand spaced from said casing, said housing embodying a bottom wall and aside wall, an enclosure positioned below said hous- 7 ing and embodyinga flange secured to the lower surface of said bottom wall, there being acentralropening in the bottom wall of said housing, a lamp positioned?within said housing and having a portion thereof projecting through theopening in the bottom Wall of said housing, a socket positioned in saidenclosure, said lamp being mounted in said socket, conductor wiresleading from said socket to said ballast, there being an opening infrontof said housing, a transparent heat resistant lens extending across saidlast named opening, aframe secured to said housing for retaining saidlens in place, a reflector positioned in said housing behind said lamp,a cover mounted on said housing, a plurality of heat dissipating fins ontop of said cover, a flange depending from said cover and surroundingsaid housing, a transparent cylinder surrounding said lamp, a bodymember secured to the under surface of said cover and including aplurality of depending concentrically arranged heat dissipating rings,there being an annular groove in said body member for receiving theupper end of said cylinder, a bracket secured to said casing andembodying angularly arranged arms connected to the sides of saidhousing, said reflector having a curved shape'and being provided with anoutwardly offset portion intermediate the ends thereof.

References Cited in the file ofthis patent UNITED STATES PATENTS1,153,443 Pole Sept. 14', 1915 1,909,947 Greppin May 23, 1933' 2,161,853Comstock June 13, 1939 2,173,325 Alexander Sept. 19, 1 939- 2,204,079Gelb June 11, 1940 2,312,294 Worthington et a1. Feb. 23, 1943 FOREIGNPATENTS 395,236 France Dec. '22,. 1908

